tdb2: add lib/tdb2 (from CCAN init-1161-g661d41f)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/tdb2/test/run-55-transaction.c b/lib/tdb2/test/run-55-transaction.c
new file mode 100644
index 0000000000..1650e40e1f
--- /dev/null
+++ b/lib/tdb2/test/run-55-transaction.c
@@ -0,0 +1,75 @@
+#include <ccan/tdb2/tdb.c>
+#include <ccan/tdb2/open.c>
+#include <ccan/tdb2/free.c>
+#include <ccan/tdb2/lock.c>
+#include <ccan/tdb2/io.c>
+#include <ccan/tdb2/hash.c>
+#include <ccan/tdb2/check.c>
+#include <ccan/tdb2/transaction.c>
+#include <ccan/tap/tap.h>
+#include "logging.h"
+
+int main(int argc, char *argv[])
+{
+	unsigned int i;
+	struct tdb_context *tdb;
+	unsigned char *buffer;
+	int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
+			TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT };
+	struct tdb_data key = tdb_mkdata("key", 3);
+	struct tdb_data data;
+
+	buffer = malloc(1000);
+	for (i = 0; i < 1000; i++)
+		buffer[i] = i;
+
+	plan_tests(sizeof(flags) / sizeof(flags[0]) * 20 + 1);
+
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		tdb = tdb_open("run-55-transaction.tdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(tdb);
+		if (!tdb)
+			continue;
+
+		ok1(tdb_transaction_start(tdb) == 0);
+		data.dptr = buffer;
+		data.dsize = 1000;
+		ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
+		ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
+		ok1(data.dsize == 1000);
+		ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+		free(data.dptr);
+
+		/* Cancelling a transaction means no store */
+		tdb_transaction_cancel(tdb);
+		ok1(tdb->file->allrecord_lock.count == 0
+		    && tdb->file->num_lockrecs == 0);
+		ok1(tdb_check(tdb, NULL, NULL) == 0);
+		ok1(tdb_fetch(tdb, key, &data) == TDB_ERR_NOEXIST);
+
+		/* Commit the transaction. */
+		ok1(tdb_transaction_start(tdb) == 0);
+		data.dptr = buffer;
+		data.dsize = 1000;
+		ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
+		ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
+		ok1(data.dsize == 1000);
+		ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+		free(data.dptr);
+		ok1(tdb_transaction_commit(tdb) == 0);
+		ok1(tdb->file->allrecord_lock.count == 0
+		    && tdb->file->num_lockrecs == 0);
+		ok1(tdb_check(tdb, NULL, NULL) == 0);
+		ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
+		ok1(data.dsize == 1000);
+		ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+		free(data.dptr);
+
+		tdb_close(tdb);
+	}
+
+	ok1(tap_log_messages == 0);
+	free(buffer);
+	return exit_status();
+}